Aerospace Glass Fiber (GFRP) Honeycomb Milling

1.Not only meeting the customer inclined surface qualities, but increases the roughing effcicency by 4 times 2.At the same quality standard, the finishing effcicency can be increased by 2 times

HIT Ultrasonic Machining Module Efficiency Test in GFRP Honeycomb machining:

Following charts below show disparities between using HIT Ultrasonic machining and Non-ultrasonic machining.
We increased GFRP rough milling efficiency to 300% and fine milling efficiency to 100%!

 Efficiency in contrast with HIT Ultrasonic machining and Non-Ultrasonic Machining

Picture of Finished GFRP Honeycomb milling

GFRP Honeycomb machined Finished product in the use of HIT Ultrasonic Machining Module
Through subtle ultrasonic vibrations passed from tools to materials, it can effectively eliminate excessive force placing on the materials, resulting in less damage, less waste, and better finish.
 
HIT ultrasonic machining module can reduce cutting heat by dense vibrations. 
 
Further, its Non-contact power transmission eliminates the resistance through consumables, lowering thermal impact more effectively.
 

HIT Highlight and comparison
Method HIT Ultrasonic CNC
Advantages in GFRP honeycomb machining
  • Reduce cutting resistance and  not to destroy the fiber
  • Lower cutting heat
  • Improved quality by reducing chipped width generated 
  • Low cost to produce
 
Quality
  • Less tears generated reach clients’ expectations
  • Easily to generate laceration, more chipped width.
 
Efficiency
  • Rough milling efficiency+300%
  • Milling Efficiency+100%
  • Short tool life
  • Higher probability need to repair broken structure

 


The fiberglass honeycomb structure has the advantage of saving material, light weight, high hardness and high rigidity. Unlike Nomex can only bear high pressure in the longitudinal direction, it can withstand multi-faceted forces.

The application of GFRP currently used in the aerospace industry for wings, nacelles, and spoilers. Also, it is normally used in architecture and lightweight automobile.

In this case, we will see how HIT ultrasonic machining module assist in GFRP honeycomb machining. We overcome GFRP extremely toughness and structure problem, effectively enhancing machining efficiency to 2-3 times within the accepted quality.
 
the cutting heat generated by the glass fiber honeycomb processing is prone to change its mechanical properties.

The tough hollow structure is a major difficulty to machine and tool. Wrong cutting force generated by conventional
CNC machining may causes severe burrs and tears in the fiber layer. 

Difficult maintenance and high cost of repairing damaged materials are another pain points to manufacturers.